Colostomy Liners – 100-Count Ostomy Pouch Covers – Biodegradable Liners for Colostomy Bags – Professional Colostomy Supplies – Leakproof and Flushable (Large). Skin-Friendly Materials: The Colo-Majic colostomy bag covers are made with your safety in mind with high-quality, skin-friendly BASF EcoVio material thats breathable, non-irritating and gentle with your sensitive skin while keeping the area clean.